There serious air pollution if people us...

There serious air pollution if people use more and more cars.

A. has B. will be

C. will have D. are going to be

B 【解析】试题分析：句意：如果人们用越来越多的车，将会有严重的空气污染。if如果，从句用一般现在时，主句用一般将来时。there be 的一般将来时为there will be，there is/are going to be。因此，选B 考点：考查时态的用法。

考点分析：

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